When it comes to luxury living, Dubai reigns supreme. According to a recent survey by Henley & Partners, the glittering city of Dubai is not just home to 15 billionaires, but it's also attracting the attention of over 200 potential centi-millionaires. What's more, Dubai is poised to become one of the world's leading hubs for the ultra-rich in the next decade. Wants to visit our Listings : Click...